3.8 The cell cycle

Question 1

What are the 3 stages of the cell cycle

Answer 1

1. Interphase
2. Nuclear division
3. Division of the cytoplasm

Question 2

Describe interphase

Answer 2

The stage that occupies the most of the cell cycle, no division takes place

Question 3

Describe nuclear division

Answer 3

The stage where the nucleus divides either into two or four (mitosis or meiosis)

Question 4

Describe division of the cytoplasm

Answer 4

The stage where the cytoplasm divides to produce two new cells or four new cells (mitosis or meiosis)

Question 5

What is cancer

Answer 5

A group of diseases caused by a growth disorder of cells. It is caused by damage to the genes that regulate the cell cycle

Question 6

How do drugs used to treat cancer disrupt the cell cycle

Answer 6

1. Prevent DNA from replicating

2. Inhibiting the metaphase portion of mitosis by preventing the spindle fibres forming